11139469 has 4 divisors (see below), whose sum is σ = 12152160. Its totient is φ = 10126780.

The previous prime is 11139463. The next prime is 11139493. The reversal of 11139469 is 96493111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11139469 - 2⁷ = 11139341 is a prime.

It is a super-2 number, since 2×11139469² = 248175539203922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11139463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506329 + ... + 506350.

It is an arithmetic number, because the mean of its divisors is an integer number (3038040).

Almost surely, 2^11139469 is an apocalyptic number.

It is an amenable number.

11139469 is a deficient number, since it is larger than the sum of its proper divisors (1012691).

11139469 is a wasteful number, since it uses less digits than its factorization.

11139469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012690.

The product of its digits is 5832, while the sum is 34.

The square root of 11139469 is about 3337.5843060513. The cubic root of 11139469 is about 223.3339924735. Note that the first 3 decimals are identical.

The spelling of 11139469 in words is "eleven million, one hundred thirty-nine thousand, four hundred sixty-nine".